Ferias Jogakuin lacrosse members came to the training camp in the summer sea, but as usual they did not listen to Kuroda and played on the beach. Yuri Momoi, who is practicing on the sand under Kuroda's orders, but seeing the surrounding couples inflates her fantasy. Yuri, who fell on the sandy beach due to the heat, is embraced by Kuroda at a pension borrowed in the club. Yuri who woke up and misunderstood that the delusion still continues ...!?